Snow plow



Nov. 21, 1950 H. D. CALLAHAN 2,539,856

SNOW PLOW Filed Jan. 22, 1948 l I I 1 9 l3 l4 I'l l6 /8 I n 37 41 w 4%1w 1| u 4 29 26 T 2 32 I LL U 2 16 /o I: 23 I f l5 /2 I \I I: L Fig 3Horace D. Callahan INVENTOR.

BY WM 153M1 Patented Nov. '21, 1950 r orrice SNOW PLOW HoracetDCallahan, Hobart, Ind.

Application January 22, 1948, Serial No. 3,745

4 Claims. 1

The present invention relates to certain new and useful improvements inscrapers such as are adapted to be maneuvered by a walking attendant andthus manually powered, whereby to: provide a structure which may be usedas. a plow for removing snow from sidewalks; garage driveways, graveland stone paths and similar surfaces.

The invention relates to a field of endeavor which is appreciablyactive. 'I'herefore,Iam aware that it. is old in the art to utilize amobile frame, to support a scraping blade. thereon, and to providehandle bars' for pushing the support whereever necessary and maneuveringthe scraper blade according to the lay of the land and obstructions tobe met during the snow removal procedure.

In carrying out the principles of the instant invention I utilize astructure which is possessed, Iv believe, of special adaptations and"refinements which, collectivelyfunctioning, serve to attainv the desiredends. with greater satisfaction and efliciencyr Since, in many sectionsof the country, snow removal jobs are. occasional affairs, the averageman. of the house requires,v it is submitted, that which may be handledwith convenience and without too much, physical exertion and. effort.Therefore, it is an object of the. present inventi'on, toprovide ahandle equipped readily maneuverable and wheel supported truck, thishaving. a scraper blade on its forward portion and means being providedwhereby the blade may be conveniently angled in relation to. the line.of draft of the truck, to facilitate. snow gathering and pushingresults.

More particularly, novelty is predicated upon an adj'ustabl'y mountedscraper blade which is provided with a segmental rack to accommodate alatch lever carried by the truck, the lever being so designed, mountedand arranged that it may be readily utilized to insure best results witha minimum of inconvenience to the user.

In the accompanying drawings, wherein like numerals are employed todesignate like parts throughout the views Figure: 1 is a perspectiveview of a snowremoving plow constructed in accordance with theprinciplesof this invention;

Figure an a longitudinal section taken centrally through the structureseen in Figure 1, the section being on the line 22 of Figure 3.;

Figure 3 is a top plan view; and,

Figure 4 is an enlarged fragmentary detail section on the line 44' ofFigure 3, looking in the direction of the arrows.

Referring now to the drawings by distinguishing reference numerals thetruck comprises a wooden or equivalent frame denoted by the numeral 5and embodying longitudinal side members B- and 1 and transverse forwardand rear connecting members 8 and 9. Auxiliary longitudinal framemembers are mounted within the confines of the main frame and denoted bythe numerals l0 and these assist in supporting an axle H and groundcontacting and transporting Wheels i2 mounted on said axle between therespective longitudinal frame parts 6, T and I0 respectively.Incidentally, the numerals l3 designate handle bars hingedly connectedto the axle and situated in close parallelism between the longitudinalframe members I0, said handle mem bers being provided with hand gripsI4. On the forward end portion of the truck frame I provide a suitableV-shaped adapter which comprises converging members l5 and spacedparallel members It. The vertex portion of the adapter is provided withhinge means ll' connected with the central portion of the scraper bladel8. Incidentally, the blade has upper and lower longitudinal flanges l9which serve to provide effective collecting and scraping results. Therear side of the blade, adjacent the lower half portion is provided witha segmental strap 20 having a plurality of circumferentially spacedkeeper notches 2!. The notched strap functions as an adjusting rack andits intermediate portion opcrates shiftably through clearance notches 22provided in the adapter 'members l5. At this stage I call attention to aJ-shaped latch-lever 23 whose end portion is pivoted as at 24 betweenthe members IS. The handle portion 25, provided with a hand grip 26, isworkable in a slot or notch 28 provided in the transverse frame member 8as shown in Figure 2. A coiled spring 29 is attached to the shank of thelever and also to the cross-piece 8 and this serves to hold the Vretentive portion of the lever in the keeper notches 2!, in an obviousmanner. By locating the handle and hand grip in the frame 5 and at theelevation seen, and close to the handle bars, it is convenientlysituated for accessible and handy usage.

1 next earl attention to a caster yoke (it! (see Figure 2) having acaster wheel 3! and swivellymounted on an assembling and regulating rod32 This rod is slidable and turnabl'e in an aperture provided thereforin the spider 33. The upper screw threaded end of the rod serves toaccommodate an adjusting nut 34 (see Figure 4) which nut is providedwith a groove 35 to accommodate a set screw 36, whereby to swivellyanchor the nut between the adapter members 16. The nut is provided witha finger grip 31 for convenience of operation. It is obvious, therefore,that by turning the nut, the rod 32 is raised and lowered to elevate orlower the caster and to thus correspondingly lift and lower the scraperblade to clear high and low spots occurring in pavements and the surfaceto be traversed, in an obvious manner.

Briefly, the invention is characterized by a wheel supported handle barequipped frame forming a truck, this having a V-shaped fore portionconstituting an adapter on the apex of which the scraper blade ishingedly mounted for swinging in a horizontal plane. Convenientadjusting means is provided for angling the scraper blade so that it hassome four or five positions in respect to the longitudinal line of draftof the truck. A careful consideration of the foregoing description inconjunction with the invention as illustrated in the drawings willenable the reader to obtain a clear understanding and impression of thealleged features of merit and novelty sufficient to clarify theconstruction of the invention as hereinafter claimed.

Minor changes in shape, size, materials and rearrangement of parts maybe resorted to in actual practice so long as no departure is made fromthe invention as claimed.

Having described the invention, what is claimed as new is:

l. A snow plow of the class described comprising a portable truck, saidtruck being of box-like form and including a rectangular frame havinglongitudinal side members and connecting transverse end members,together with central longi tudinal members between the end members andside members, a V-shaped adapter on the forward portion of said frameincluding spaced parallel coacting members, a latch-lever having an endportion pivoted between the last named members, a shank portion locatedbetween the second named longitudinal members of the frame andterminating in a hand grip, a scraper blade hingedly mounted forswinging on the vertex portion of said V-shaped adapter, said scraperblade being provided with a semi-circular notched strap forming a rackbar, said latch-lever being selectively engageable with the notches insaid rack bar, supporting wheels for said frame, and handle barsconnected with said frame.

2. In a walking attendant handled and steered snow plow of the classshown and described, a wheel supported frame constituting a truck andhaving a forwardly projecting V-shaped portion,

a horizontally disposable scraper'blade hingedly mounted intermediateits ends on the apex of said V-shaped portion, a segmental rack havingend portions rigidly secured to the rearward side of said blade, thelower edge portions of said V-shaped portion having clearance notchesand the intermediate portion of said rack being located in and shiftableback and forth through said notches, said rack being provided withcircumferentially spaced keeper notches, a latch lever pivoted at oneend on said V-shaped portion, having an intermediate part releasablyengageable with said keeper notches and having, in addition, a handleportion located for operation within the confines of said frame, springmeans attached at one end to said latch lever and anchored at itsopposite end on said frame, and handle bars connected to the trailingend portion of said frame for pushing and otherwise maneuvering theframe.

3. In a Walking attendant handled and steered snow plow of the classshown and described, a wheel supported frame constituting a truck andhaving a forwardly projecting V-shaped portion, a horizontallydisposable scraper blade hingedly mounted intermediate its ends on theapex of said V-shaped portion, a segmental rack having end portionsrigidly secured to the rearward side of said blade, the lower edgeportions of said V-shaped portion having clearance notches and theintermediate portion of said rack being located in and shiftable backand forth through said notches, said rack being provided withcircumferentially spaced keeper notches, a latch lever pivoted at oneend on said V-shaped portion, having an intermediate part releasablyengageable with said keeper notches and having, in addition, a handleportion located for operation within the confines of said frame, springmeans attached at one end to said latch lever and anchored at itsopposite end on said frame, handle bars connected to the trailing endportion of said frame for pushing and otherwise maneuvering the frame, anut swivelly mounted in the crotch of the stated apex portion, a rodsituated in said crotch portion adjustably mounted in said nut, and acaster on the lower end of said rod adapted to rest upon the surfacebeing traversed.

4. A snow plow of the class shown and described comprising awheel-suported frame constituting a portable truck, said frame havinglongitudinal side members and connecting transverse end members andlongitudinal members between the end members and side members, aV-shaped adapter on the forward portion of said frame including spacedparallel coacting members, a latch lever having an end portion pivotedbetween the last-named coacting members, a portion of said lever beinglocated for operation between the longitudinal members in said frame andterminating in a hand grip, a scraper blade hingedly mounted forswinging in a horizontal plane on a, vertical axis on the vertex portionof said V-shaped adapter, a strap connected at its ends to the rear sideof said scraper blade and provided with notches and constituting a rackbar, said latch lever being selectively engageable with the notches insaid rack bar, supporting wheels mounted on said frame, spring meansattached at one end to the lever and at its opposite end to the frameand serving to hold the latch lever in a chosen keeper notch, and handlemeans connected with said frame.

HORACE D. CALLAHAN.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS

